International Journal of Geometry

MARTIN JOSEFSSON and MARIO DALCÍN – 150 characterizations of squares

On March 15th, 2025, posted in: by admin

MARTIN JOSEFSSON – Extensive compilation of characterizations of rectangles

On December 28th, 2024, posted in: by admin

MARTIN JOSEFSSON – Characterizations of parallelograms II

On June 24th, 2024, posted in: by admin

MARTIN JOSEFSSON – Characterizations of parallelograms (I)

On March 25th, 2024, posted in: by admin

MARTIN JOSEFSSON and MARIO DALCÍN – Characterizations of quasi-isosceles quadrilaterals

On December 29th, 2023, posted in: by admin

MARTIN JOSEFSSON – Fifteen collinear points in bicentric quadrilaterals

On September 19th, 2023, posted in: by admin

MARTIN JOSEFSSON – Great compilation of characterizations of squares

On June 30th, 2023, posted in: by admin

MARTIN JOSEFSSON and MARIO DALCÍN – Beyond 100 characterizations of tangential quadrilaterals

On March 27th, 2023, posted in: by admin

MARTIN JOSEFSSON and MARIO DALCÍN – More new characterizations of extangential quadrilaterals

On December 31st, 2022, posted in: by admin

MARTIN JOSEFSSON and MARIO DALCÍN – New characterizations of extangential quadrilaterals

On June 30th, 2022, posted in: by admin

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